Münster 2017 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 32: Structure and Dynamics of Nuclei V

HK 32.2: Talk

Wednesday, March 29, 2017, 17:15–17:30, F 33

Coulomb excitation of ¹⁴²Xe — •Corinna Henrich¹, Thorsten Kröll¹, Mirko von Schmid¹, Gary Simpson², and Michael Thürauf¹ for the IS548 collaboration — ¹IKP, TU Darmstadt, Germany — ²LPSC, Grenoble, France

The neutron rich nucleus ¹⁴²Xe lies in the vicinity of the doubly magic nucleus ¹³²Sn and is only two protons below ¹⁴⁴Ba, which exhibits the largest octupule collectivity in the region. To study the onset of octupole collectivity and follow the evolution of quadrupole collectivity in this area a "safe" Coulomb excitation experiment was carried out at the new HIE-ISOLDE facility (CERN) in the end of 2016. Both beam and target nuclei were measured using C-REX, i.e. an array of segmented Si detectors, covering forward as well as backward angles. The MINIBALL spectrometer was used to detect the emitted gamma rays in coincidence. The experimental setup will be presented along with the first stages of the analysis.

This work is supported by BMBF under contract 05P15RDCIA, by the EU under contract ENSAR 262010 and by ISOLDE.